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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Security Services | 10% | - Security architecture design
|
| Topic 2: Software-Defined Access (SDA) | 5% | - Control plane and data plane design - SD-Access architecture - Fabric design and deployment |
| Topic 3: WAN for Enterprise Networks | 20% | - WAN connectivity options
|
| Topic 4: Advanced Enterprise Campus Networks | 25% | - Layer 3 campus design
|
| Topic 5: Network Services | 15% | - IP services
|
| Topic 6: Advanced Addressing and Routing Solutions | 25% | - IPv4 and IPv6 addressing design
|
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NEW QUESTION # 299
Which consideration must be taken into account when using the DHCP relay feature in a Cisco SD-Access Architecture?
Answer: C
Explanation:
In a Cisco SD-Access fabric, DHCP relay design must account for the fact that endpoints can attach to different fabric edge nodes while using consistent anycast gateway behavior. DHCP Option 82 is important because it inserts relay-agent information that allows the DHCP infrastructure to identify where the DHCP request originated. This enables the correct address scope and policy context to be selected for the endpoint even when the gateway address is anycast across multiple fabric edges. Cisco SD-Access DHCP guidance emphasizes the use of relay information so centralized DHCP services can assign the correct address based on fabric location and endpoint context. DHCP relay is not simply enabled on border nodes, and subnets should not be stretched across fabric edges by placing DHCP servers on borders. DHCP servers do not require a special proprietary SD-Access extension in the sense described by the incorrect option; they use standard relay information such as Option 82. Therefore, the key design consideration is enabling DHCP Option 82 so the circuit information maps the request to the fabric node where it originated.
NEW QUESTION # 300
Which two statements about VRRP object tracking are true? (Choose two)
Answer: A,C
Explanation:
VRRP object tracking allows the effective priority of a VRRP router to change when a tracked object changes state. Cisco documentation states that VRRP object tracking ensures the best VRRP router is master by altering VRRP priorities according to tracked objects such as interface or IP route states. This directly supports answer A. It also supports answer D, because VRRP can track interfaces and routes through the tracking process. The priority does not have to remain fixed; object tracking is specifically designed so a router can lower its priority when an uplink, route, or critical dependency fails. A VRRP group is not limited to one tracked object in modern Cisco implementations, so option C is too restrictive. VRRP does not support only interface tracking; route tracking is also a common use case, especially when the LAN interface is still up but upstream reachability has failed. In a resilient campus or branch gateway design, object tracking prevents a router from remaining master when it no longer has a valid upstream path, improving deterministic failover.
NEW QUESTION # 301
What is the function of the multicast Reverse Path Forwarding check?
Answer: A
Explanation:
Section: Network Services
NEW QUESTION # 302
In the SD-WAN underlay network, which WAN Edge VPN ID is defined as the transport VPN and is used to carry control traffic?
Answer: B
Explanation:
VPN 0 is the transport VPN in Cisco SD-WAN. It carries control traffic and provides connectivity from WAN Edge routers toward the transport networks, such as MPLS, Internet, LTE, or other WAN services. Control connections to Cisco SD-WAN controllers are established through transport interfaces that belong to VPN 0.
Data VPNs carry service-side user traffic and are separate from the transport VPN. VPN 512 is commonly used for out-of-band management, not for carrying overlay control connections. VPN 128 and VPN 256 are not the reserved transport VPN identifiers. The design importance is that VPN 0 must have correct addressing, color assignment, routing reachability, NAT traversal considerations, and certificate-based controller connectivity. If VPN 0 is misdesigned, the WAN Edge cannot establish stable control connections, cannot receive OMP routes and policies, and cannot build the secure overlay properly. Therefore, VPN 0 is the correct transport VPN for underlay control traffic. Reference topics: Cisco SD-WAN VPN 0, transport VPN, control connections, WAN Edge onboarding, overlay formation.
NEW QUESTION # 303
DRAG DROP
Drag and drop the characteristics from the left onto the correct telemetry mode on the right.
Select and Place:
Answer:
Explanation:
Explanation:
In a dial-in mode, the destination initiates a session to the router and subscribes to data to be streamed. Dial-in mode is supported over gRPC in only 64-bit platforms In a dial-out mode, the router initiates a session to the destinations based on the subscription. All 64-bit IOS XR platforms (except for NCS 6000 series routers) support gRPC and TCP protocols. All 32-bit IOS XR platforms support only TCP.
Reference:
https://www.cisco.com/c/en/us/td/docs/iosxr/asr9000/telemetry/b-telemetry-cg-asr9000-61x/b-telemetry-cg- asr9000-61x_chapter_010.html#id_36445
NEW QUESTION # 304
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